Rotary motor.



PATENTED PEB. 28, 1905.

` A. SAUER.

ROTARY MOTOR.

APPLIGATION FILED JULY 21, 1904.

s sumti-SHEET 1.

WM NM,

No. 783,984. PATENTED FEB. 28, 1905. A. SAUER.

ROTARY MOTOR.

APPLIGATION FILED JULY 21. 1904.

3 SHEETS-SHEET 2.

' No. 783,984. PATENTEO FEB. 2O, 1905.

A. SAOER. ROTARY MOTOR.

` APPLIUATION FILED JULY 21 1904.

3 SHEETS-SHEET 3,

UNITED STATES Patented February 25], 1965.

PATENT @Erima ROTARY MOTOR..

SPECIFICATION forming part of Letters Patent No. 783,984, dated February 28, 1905.

Application tiled July 2l, 1904. Serial No. 217.578. i

To /r/Zl whom, [It may concern.'

Be it known that l', ADELBERT SAUER, a citi- Zen of the United States, and a resident of Pittsburg, county of Allegheny, and State of Pennsylvania, have invented certain new and useful Improvements in Rotary Motors, of which the following is a full, clear, and exact specification, reference being had to the accompanying drawings, illustrating a motor embodying my invention, wherein- Figure 1 is a vertical sectional view taken through the shaft of the motor-piston on line 1 1 indicated in Fig. 3. Fig. 2 is an end view. Fig. 3 is a cross-sectional View on the line 3 3 indicated in Fig'. 1. Fig'. 4. is a plan view of the piston.

The invention relates to a motor having' a rotating piston and driven both by the impact and by the reactionary force of the motor fluid escaping' from ports or passages arranged transverse tothe path of rotation of the piston.

The frame of the motor comprises a baseplate 12, having' the upright walls 13, that merge into the open shell 14, whose ends are closed by the end plates 15 l5, secured by bolts to flanges on the end of the shell 14. The end plates 15 carry bearing men'lbers, in which the shaft 16 oi' the cylindrical piston 17 is journaled. Un the piston are a series ol radial ribs 13, extending' parallel with the shaft, forminglongitudinal channels 19. rlhe latter channels are divided by a ring or `flange 20, secured on the piston. From each end of each of the ribs 18 a rib 21 extends (see Fig. 4f) iirst at a rig'ht angle to the rib 18 until it reaches nearly to the next rib, whereupon it extends diagonally for a distance, when it again extends in a circumferential direction until within ashort distance of the next rib, and so on alternately in a zigzag path until it reaches the end of the cylinder, but always extending' radially from the piston. Thereby are formed an alternating series of pockets 22 and contracted passages 23.

A. casing 24 is supported inside of the shell 14: and offset therefrom by rings 25 and 26, which casing engages the outer edges of the ribs 18 and of the ribs 21, thereby forming passages of the said channels 22 and 23. ln the casing 24. between the rings 25 and 26 are a series of slots 27, that are inclined to the radius of the casing. Spaces 23 are provided in each of the end plates 15 around the ends of the casing 24, so that the outlet of the passages in the piston are in communication with the spaces 29 and 3() beyond the rings 25 and 2G.

T he steam or other motor Huid enters the space 31 in the shell, and passing' through the inclined slots 27 strikes the ribs 18 trans versely, whereupon the impact will cause the piston to rotate. There are preferably a less number of slots in the casing than there are ribs 18, so that some one of the ribs is always in a position to receive the greatest eli'ect of the steam flowing through one of the slots. After lilling up the spaces l) the steam passes out of the end of them through the spiral passages and thence into the spaces 29 and 30, from which it escapes through slots 32 and. 33 in the lower part of the casing. The issuing of the steam from these spiral passages will have a reactionary eiiect upon the piston similar to that in a turbine and augment'. the rotationary eiiect of the steam upon the ribs 18. The steam passing' into the base may be there condensed by providing pipes 34.-, passing through the same, and caps and 36, inclosing the portions of the frame sL|pporting the tubes 34. A stream ol" cold water enters one ofthe cap-spaces through a pipe 37, thence passes through the pipes 34 into the cap 36, and thence out into a pipe 33. The steam striking the cool pipes 34 will be condensed, and this water of comlensation, together with the uncondensed steam, passes out of the casing through an aperture 39.

That 1 claim as my invention isf'- l. The combination of a casing, a piston set rotatably in the casing, a series of radiallydisposed ribs on the piston, inlet-ports in the casing for the motor li uid, means for directing the motor fluid against the ribs, a series of spirally-arranged channels in the piston extending' from the spaces between the ribs to the ends of the piston, and an exhaust-port in the casing connecting with the outer ends of the channels.

2. rllhe combination of a casing, a piston set rotatably in the casing, a series of ribs radially disposed on the piston and extending IOO to the casing, radial ports tangentially disposed in the easing, a series of spirally-arranged ribs on the piston extending from the said ribs and forming spiral passages between the ribs oi' the piston and the inner surface of the casing and leading to the end of the piston, and an exhaust-port in the easing eonnecting with the ends of the spiral passages.

3. The combination of a easing, a piston set rotatably in the easing, a series of ribs radially disposed in the easing, a series of spiral ribson the piston arranged in a zigzag Course and extending from the said ribs toward the end of the piston whereby spiral passages alternately increasing and diminishing'in their cross-sectional area are formed leading from the spaces between the latter ribs to the ends of the piston, and an exhaust-port in the oasing connecting with the ends oi' the spiral passages.

4. The combination of a easing, an outer shell Coneentrie with the Casing, longitudinal slots in the middle partei' the casing disposed at an angle to the radius of the casing, collars set between the shell and the easing one at each end of the slots, an inlet into the outer shell opening into the space between the eollars, a piston rotatably set in the easing, a eireumi'erential flange set 0n the piston approximately midway between its ends and at right angles to its axis, a series of radialzigzag ribs extending from the circumferential ange spirally around the piston and toward the ends thereof, engaging the casing with their outer edges, and forming spiral passages alternately increasing and diminishing in their cross-sectional area and leading from the eiroumferential flange to the ends of the piston, an outlet from the outer ends of the spiral passages into the space between the easing and shell, and exhaust-outlets in the shell.

ADELBERT SAUER.

Witnesses:

C. J. HOFFMANN, LEO C. SoHoLL. 

